China Man Extracts $29,000 in Gold from Old SIM Cards

Technology Environment

Aug 14, 2026 · 5 min read

China Man Extracts $29,000 in Gold from Old SIM Cards

In Guangdong, China, a man turned old, discarded SIM cards into $29,000 — by extracting gold. The process, while lucrative, involves hazardous chemicals and presents a unique opportunity to address the growing e-waste problem.

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Gold Extraction from SIM Cards

The art of extracting gold from discarded electronics has garnered attention, especially after a man from Guangdong, China, managed to extract 191 grams of gold, valued at $29,000, from old SIM cards.

Why this matters

The extraction of precious metals from electronic waste is a burgeoning field, driven by both economic incentives and environmental concerns. As technology advances, the volume of electronic waste (e-waste) continues to grow, presenting both a challenge and an opportunity. The extraction process showcased by Qiao highlights the hidden value in discarded telecommunication devices and the potential for refinery.

The Process

Electronic Waste and Gold Content

Gold is a crucial component in many electronic devices, including SIM cards. These cards, which are used for identification and security in mobile devices, often contain gold plating. This gold plating and other components with precious metals contribute to the high value of the recovered metals.

Extraction Method

Qiao, a certified scrap metal refiner, used a complex chemical process to isolate the gold. The method involved several steps, including corrosion, filtration, and extreme heating. He employed approximately two tonnes of electronic and telecommunications waste, primarily consisting of gold-plated SIM cards and some electronic chips.

Here is a simplified breakdown of the process:

  1. Corrosion: The gold-plated components are soaked in a mixture of concentrated nitric and hydrochloric acids, known as aqua regia, to dissolve the gold.

  2. Filtration: The dissolved gold is separated from the other materials through filtration.

  3. Extreme Heating: The filtered solution is heated to evaporate the acids, leaving behind the pure gold.

Challenges and Hazards

The process, while lucrative, is highly hazardous. Aqua regia is a dangerous substance that can release lethal toxic gases and cause severe chemical burns. The process requires careful handling and adherence to safety protocols. Additionally, it is illegal in many jurisdictions to engage in unauthorized backyard recycling of electronic waste due to the environmental and health risks involved.

The Surge in Sales

The demonstration by Qiao triggered a buying frenzy for old SIM cards and DIY gold-refining kits. Amateurs, inspired by the potential profits, began purchasing bulk shipments of used SIM cards. This surge in sales created a temporary market boom, reflecting the public's interest in uncovering hidden wealth within discarded electronics.

Gold Content in SIM Cards

The gold content in SIM cards is one of the key reasons why they are targeted for recycling. Each SIM card contains a small amount of gold, making large quantities of discarded SIM cards a valuable resource. However, extracting this gold requires significant effort and resources, making it a task best handled by professionals.

Market Implications

The sudden rise in demand for old SIM cards and DIY refinery kits has had a noticeable impact on the market. It highlights the potential for small-scale recycling operations and the need for more efficient and safe methods of extracting precious metals from e-waste.

Practical Tips

If you are interested in gold extraction from electronic waste, consider the following tips to ensure safety and efficiency:

  1. Evaluate the Worth: Before attempting any extraction, assess the value of the metals in the scrap. Not all electronic waste contains significant amounts of gold, so it's crucial to determine the potential return on investment.

  2. Seek Professional Assistance: Due to the hazardous nature of the process, it is advisable to work with professionals who have the necessary equipment and knowledge to handle the chemicals safely.

  3. Legal Compliance: Ensure that you comply with local regulations regarding e-waste recycling and chemical disposal. Unauthorized recycling can result in severe penalties and environmental damage.

  4. Safety First: Always prioritize safety. Wear protective gear, work in a well-ventilated area, and follow all safety protocols when handling hazardous chemicals.

Important Takeaways

Environmental Impact

While gold extraction from SIM cards offers economic benefits, it also poses environmental challenges. Improper disposal of chemicals and waste can lead to soil and water contamination, posing risks to human health and the environment. It is essential to adopt sustainable practices and regulations to mitigate these risks.

Economic Opportunities

The extraction process highlights the economic potential of e-waste. With the right resources, it can be a profitable venture. However, it also underscores the importance of professional expertise and adherence to safety guidelines. The surge in demand for old SIM cards demonstrates the public's interest in tapping into this hidden resource.

Safety and Legal Considerations

Extracting gold from electronic waste is not a task for amateurs. The process involves handling hazardous chemicals and adhering to strict safety protocols. It is crucial to be aware of the legal implications and potential risks involved.

Conclusion

The extraction of gold from old SIM cards by a man in Guangdong, China, has sparked interest and debate. While the process reveals the hidden value in discarded electronics, it also highlights the importance of safe, legal, and sustainable practices. As the volume of e-waste continues to grow, the need for efficient and environmentally friendly recycling methods becomes increasingly important.

Summary

Key points

  • Gold can be extracted from discarded electronics, like SIM cards, with significant economic value.
  • The extraction of precious metals from e-waste is driven by economic incentives and environmental concerns.
  • Qiao used a complex chemical process involving corrosion, filtration, and heating to isolate gold from SIM cards.
  • The process of extracting gold from SIM cards is highly hazardous and requires careful handling of dangerous substances.
  • The demonstration by Qiao sparked a buying frenzy for old SIM cards and DIY gold-refining kits among amateurs looking for profit.
  • SIM cards contain a small amount of gold, but extracting it requires significant effort and resources, making it best suited for professionals.
  • A surge in sales of old SIM cards and DIY gold-refining kits occurred due to the public's interest in uncovering hidden wealth in discarded electronics.
Answers

FAQ

To extract gold from old SIM cards, you typically need to dissolve the gold using a strong acid, such as nitric acid, followed by a process called precipitation, where gold is separated from other metals. This process requires careful handling of hazardous chemicals and proper disposal methods.

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